/Engine/Source/Runtime/Engine/Public/ParticleHelper.h
Set up an buffer for async filling
void BuildViewFillData ( const [FParticleSystemSceneProxy](API\Runtime\Engine\FParticleSystemSceneProxy) * Proxy, const [FSceneView](API\Runtime\Engine\FSceneView) * InView, int32 InVertexCount, int32 InVertexSize, int32 InDynamicParameterVertexSize, [FGlobalDynamicIndexBuffer](API\Runtime\RenderCore\FGlobalDynamicIndexBuffer) & DynamicIndexBuffer, [FGlobalDynamicVertexBuffer](API\Runtime\RenderCore\FGlobalDynamicVertexBuffer) & DynamicVertexBuffer, [FGlobalDynamicVertexBufferAllocation](API\Runtime\RenderCore\FGlobalDynamicVertexBufferAlloca-) & DynamicVertexAllocation, [FGlobalDynamicIndexBufferAllocation](API\Runtime\RenderCore\FGlobalDynamicIndexBufferAllocat-) & DynamicIndexAllocation, [FGlobalDynamicVertexBufferAllocation](API\Runtime\RenderCore\FGlobalDynamicVertexBufferAlloca-) * DynamicParameterAllocation, [FAsyncBufferFillData](API\Runtime\Engine\FAsyncBufferFillData) & Data ) const